<%@ page contentType="text/html;charset=UTF-8" language="java" pageEncoding="UTF-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>Insert title here</title>
</head>
<body>
  <h1>hello,SpringMVC!</h1>
  <h1>username(key:string)  -- > ${string}</h1>
  <h1>username(key:username) -- > ${username}</h1>
  <h1>username(key:currentUser) -- > ${currentUser.userName}</h1>
  <h1>username(key:user) -- > ${user.userName}</h1>
</body>
</html>